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From: "Michael A. Terrell"
Subject: Re: Nice power supply - cheap
Date: Sat, 02 Nov 2002 20:32:54 -0500
Organization: Have you seen my bench? No, really! Where is it?
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Sam Goldwasser wrote:
> Winfield Hill writes:
> > Yes, those came from the old days of TTL logic that needed horrendous
> > amounts of current at 5V. I got 'em cheap for a 1000A 10V source we
> Exactly. :)
> > needed (use 10 of the 200A units in series - parallel), then gave in
> > to others who decided to just buy two 875A HP programmable supplies.
> Well I guess if the grant is running out and there's still money to be
> spent..... ;-)
> --- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
> Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
> +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
> | Mirror Site Info: http://www.repairfaq.org/REPAIR/F_mirror.html
Sam, I used to do maintenance on a Vital Industries "Squeeze Zoom"
video effects generator that had a three phase 208 VAC input, 5 VDC 1000
Amp power supply, plus several other supplies. It powered a full six
foot rack of boards to do digital video effects to NTSC video for a TV
broadcast control room. It was full of 4K X 1 1000ns ram, and ran with
a Z80B processor to do real time video effects. What a monster! Almost
one full card cage of memory boards to get 768 K of memory to store two
fields of video and chroma information. I'm glad I don't have to mess
with it anymore.
Of course, a couple hundred amps at 10 volts is enough to start your
car engine on cold mornings.
Michael A. Terrell
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